NOVUS USB-i485 Isolated USB to RS485 Converter

The NOVUS USB-i485 is a compact, isolated converter designed to bridge USB interfaces with RS485/RS422 networks in industrial environments. This device provides galvanic isolation up to 3000 Vdc, ensuring protection against electrical noise, ground loops, and voltage spikes, which is crucial for reliable data transmission in harsh settings like manufacturing plants, automation systems, and process control. It supports full-duplex RS422 and half-duplex RS485 protocols with baud rates up to 3 Mbps, making it ideal for connecting computers to PLCs, sensors, and other field devices. Key features include plug-and-play USB 2.0 compatibility, no external power required (powered via USB), and LED indicators for power and data activity. Advantages over similar products include its robust isolation, compact design for easy integration, and compatibility with Windows, Linux, and macOS without additional drivers in many cases. Drawbacks may include limited to single-port conversion and potential need for configuration software for advanced setups. Based on attached images, the unit appears used with minor markings (e.g., handwritten 'WALKESHA'), but is in good condition with intact labels, serial number 16481192, and no visible damage. Applications span industrial automation, SCADA systems, and instrumentation. For resources, refer to the official NOVUS datasheet (available at https://www.novusautomation.com/downloads/usb-i485-datasheet.pdf) and user manual (https://www.novusautomation.com/downloads/usb-i485-manual.pdf). Estimated market value is based on comparable used listings around $80-120 USD.